updated 07:15 pm EST, Tue February 21, 2012

Hynix appeal against Rambus denied by high court

The US Supreme Court hasn't allowed Hynix Semiconductor to begin an appeal against memory maker Rambus, the Wall Street Journalrevealed. In its stillborn plea, Hynix argued that Rambus hid key information from JEDEC, an industry standards-setting organization, and therefore shouldn't be able to enforce some of its patents. Rambus was accused of failing to reveal plans for patenting technologies that had been adopted by JEDEC.

Rambus, meanwhile, maintains that it did nothing wrong with its JEDEC relationship. Hynix is appealing the parts of a case it didn't win last year, when a jury ruled against Rambus. Rambus sued Hynix and other memory makers after it failed to license its technology.

In an earlier appeal, the court sided with Rambus on its interactions with JEDEC. The Supreme Court upheld that ruling. Federal judges in California and Delaware are continuing proceedings based on this latest ruling.